1. Play mode: automatically loop play when power on, support timing on/off
3. Log file: record playback time (accurate to the second) and program content
5. Split-screen playback: supports horizontal, vertical, full-screen and split-screen playback, and supports multi-combination media playback content such as pictures and videos (implemented in the background of the publishing system)
7. Logo display: support the display of its own LOGO icon in the upper left corner of the advertising screen
9. Stand-alone function: support U disk to play content without network or network failure, similar to stand-alone advertising player
11. Group update: the background publishing system supports group update files and play control lists
